Resilient vehicle suspension



July 18, 1933.

H. COUBROUGH RES ILIENT VEHICLE SUSPENS ION Filed June 24, 1930 INVENTOR fl/fizzy CbVAraujA ATTORNEY Y 1 hereinafterdescribed and Q thereof, p

45the exemplification of ,theinventio'n for ease Patented July 18, 1933 i t This invention relates "to; resilient vehicle suspension, and j nore particiilarlyto app ratus therefor and the novel' manner'of utilizi'ngthe same. z j ,The object, generallys'tated, is the provision of means mosteii'eotive in jthe pm:

vision ofstrong, durable and 'efiicient devlces for. resiliently coupling the funderc V running'gear to a body f lfalner v Ainore particular object'rsides injthe pro vision of devices solar ranged' in oppositi0n,

' one with respect to another, as to attain a; most advantageous equalization of the lat-i eral, 1nd and vertical thrusts co incident to the motivation of a vehicle. 1 V a j A further and particular' object lies in the v provision oia fvehiclefsuspension adaptable to adjustabilityin accommodating' various loads. 7 A still further objectis the provision; devices of this character,". of ,means for eliminatingjtorsion in the provision of a fullfloatingsuspension.

' The foreg ing, with further? objects and advantages, appear the 'course io f'gthe following detailed description. and through outthe claims annexed ,thereto, the invention consisting in the novel constructionpadapta} tion and the combination of cooperative parts ie ei il Inlthedrawingfi" r Figure 1 is atop plan view "of the underi carriage and body frame construction of a vehicle embodying the present invention.

Fig.2 is a transverse vertical section thereof,

taken substantially on line 2+2 of Fig. 1i Fig, 3 is a side elevation, taken in detail to an enlarged scale, illustrating vertical sus pension blocks shown in the'foregoing Views;

: and Fig. 4 is a transverse vertical section illustrating the preferred piston installation arts being indicatedgin side elevation'i Reference being had thereto, and wherein of description, is had to ""a truck trailer,*r ep-' resented generally by the numerals-5,6 indicates -vehicle wheels rotatably mounted; upon horizontal axle spindles, 'said 'axles journaled in a conventional manner through of its length for arriageor.

a source of povverfsuch asjagdravv-bar. I Inian"allocated-ldispositlon preferably 11 1 15mm p rtieun iy; saidpiston 22 1S 0611- tional ball riderin Fthe provision offa frea counteraction to thezaf orefsaid piston the bracket hangers 810i an undeljca'r'ria g generallydesignatedas.9; e Said" carriage, comprisin" transverse {and longitudinal-channel bars-10,11, respectively,

provides-a transverseplatfor 12 m diall I:

' 'i yiSuPPQ' jnsarms? r sure'tankf13.

' The compressor through .cthe JinSti'umentaIity of. a resilient unit 14-therefor, 'a giconven'tionalpiston, may be arranged in an integral assembly,for ifgdesired ,jcoupled hose from'a suitable dispositiononaforward v motiven'iediu the vertical pla'ne 'of the, Wheel." spindles, "I 7 provide. casing blocks. 16' secured as by bolts 1 17 latera y "of; "side bars 18, said side bars constituting, with transverse members '19, a "vehicle'fbody" frame. Said; Lbl'QCkS are characterized by: the provision mer in of pairofcyliridersffl), ziyaia tedare receive pi '2;' 3;*S id p t n sw t i iher pistons "hereinafter" described, are provided .shanks'zfconformed at "respective fou ter e22 V with integrally arranged oon iacitin"g grod f, w-p ov ese es ex-co p rative l-laii u ed r l fl l ing '2 iii? Q ecuremnt of respectiveyball riders 26 V 'formledrto' a larger; diameterthan' piston 23, accommodating load weightiby the contact-1f 27- being'sjecured, as by boltsfll, to'said -bfar Ifor contac'tual lenga-gement} with an opposi-t bound.- 22. e

A UPP i line 30; cemaineaag;-eiiagh ual engagement of the .ball rider to carriage" bar '11, a U -shaped configuiation of brackets resilient hose connections '31't'othe-inlet ports f:

32, 33 of said cylinders, adniits compressed air fromtank 13. Said line is furtherad pti in a long SIS.

Mior itud'inal plane mei ny fthe chas fstrainsimparted to the body frame in opi I i,91'8,452

, said cylinders 36,3 8" are securely bolted to plate sides/l0 of carriage supported-bracket IWhat- I claim, is,- I V r a 1; In a Vehicle comprising runninggear and an undercarriage for saidrunninggear, a body, anda frame for said body, of inean s members 41, ball riders carried by respective piston connecting rods engaging the inner v surface of the longitudinal and transverse bars 18, 19 of the, aforesaid body frame.

' In operation, tank pressure through supply lines to the respective c'y1inder cham bers, governed by a tank gauge and valve 43, 44:,iaffords a vehicle Support against road position to the under ca'rriage structure.

7 The resiliency of the body may be readily a'd justed as'desired. in effecting an efficientmefdiumof support, the pressure being governed,

as an accommodation to the preferably, 7 trailer load. r

Lateraland end thrust, as is believed evidentpare taken up by the air pressure exerted to the oppositional pistons of both cylin-. derpsets 36 and 38. Vertical thrusts are equalized in the cylinder chambers 20,21,

While the invention isexemplifie'd inia trailerconstruction, it is believed evident that the same might be, embodied .unitarily orconj ointly with spring suspension for suchother yehiclesaas might be desired. 7 Accord-' ingly, I donot wish to be taken asconfining myself particularly to the structural. form I illustrated, except: as confinedby the scope of the claims hereto annexed.

for resiliently suspending saidfbody frame with respect tov said undercarriage, said I 'means including. a plurality of cylinders-sew curedl'to said undercarriage and frame in vertical-and horizontal planes,fpistons for said cylinders,' fpressuremeans affordinga thrust contact of said horizontally disposed pistons against said undercarriage, one Ip is, ton in opposition to another, andl'mea ns affordin'gla pressure-thrust of said vertically;

was

disposed pistons against said body frame, onepiston in oppositionto another. 7 I

2. In avehicle, thecombination with the vehicle wheels, axles therefor, an undercarriage rigid with respect to said axles and supported thereon, a body, and a frame for said body, of cushion'devices introduced between said undercarriage and the body frame thrust. portions of eachpiston and engaging 1 the undercarriage for imparting the. thrust of such pistons upon saidundercarriage 8. The structureas defined in claim Q, said I source of supply, "and whereinvthe cylinders imparting a downwardthrust'fupon said un-,

' cylinders communicating with common,

derfcarriage are of greater diameter, than the cylinders imparting the upward thrust. 4'. The combination with the" undercarriage and the body frame of a vehicle, ofL

cushion, means 5 for supporting said frame,

said inean'scomprising a primary set of cyl-, 'inde'rs, pistons" therefor, apressure supplyi tosaid cylinders 'forforc'ingtherespective} pisto s downwardly, 1. L secondary set of cyl.-,-.

inders, piston's therefor,and-a pressure sup'f ply' tosaid last'named cylinders for forcing,

by the pistons of each of 'saidgset's oficylinthe respective pistons upwardly, securedto the undercarriage and nga eable 1G5 .ders, said first named set of cylinders ha v- Iig' afgreater thrustcapacity]. than the sec}; .h ary etsf l nd rsafi v; 

